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Table 2 Recovery values in percentage for the selected estrogens using the SPE BetaBasic column in HPLC water samples

From: Analysis of steroid hormones and their conjugated forms in water and urine by on-line solid-phase extraction coupled to liquid chromatography tandem mass spectrometry

Estrogens Recovery (%)
E3-3S 117
E2-17G 98
E2-17S 96
E1-3S 88
E2-3S 103
E3 95
E2 96
E1 94
EE2 72
  1. Recovery values were calculated comparing off-line small injection method (25 μL) with online 1 mL injections (same mass of analyte injected) (C = 500 ng L−1, n = 5)